^*Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, California;

^†Department of Medicine (Dermatology), David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California

Address correspondence and reprint requests to: Jeremy C. Davis, MD, MS, Department of Dermatology, Keck School of Medicine, University of Southern California, 1301 20th Street, Suite 570, Santa Monica, CA 90404, or e-mail: [email protected]

The authors have indicated no significant interest with commercial supporters.